{"cve":{"cve_id":"CVE-2022-26485","is_kev":true,"kev_date_added":"2022-03-07","kev_vendor_project":"Mozilla","kev_product":"Firefox","kev_vulnerability_name":"Mozilla Firefox Use-After-Free Vulnerability","kev_short_description":"Mozilla Firefox contains a use-after-free vulnerability in XSLT parameter processing which can be exploited to perform arbitrary code execution.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-03-21","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2022-26485","kev_cwes":["CWE-416"],"epss_score":0.14261,"epss_percentile":0.9613,"epss_as_of":"2026-06-23","description":"Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.","published_at":"2022-12-22T00:00:00Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-416"],"nvd_references":["https://www.mozilla.org/security/advisories/mfsa2022-09/","https://bugzilla.mozilla.org/show_bug.cgi?id=1758062"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-29T01:01:26.728167Z"},"effective_severity":"HIGH","badges":["kev"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox","product_name":"Firefox","version_start":"unspecified","version_start_inclusive":true,"version_end":"97.0.2","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:firefox:unspecified:97.0.2"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox-esr","product_name":"Firefox ESR","version_start":"unspecified","version_start_inclusive":true,"version_end":"91.6.1","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:firefox-esr:unspecified:91.6.1"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox-for-android","product_name":"Firefox for Android","version_start":"unspecified","version_start_inclusive":true,"version_end":"97.3.0","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:firefox-for-android:unspecified:97.3.0"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"focus","product_name":"Focus","version_start":"unspecified","version_start_inclusive":true,"version_end":"97.3.0","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:focus:unspecified:97.3.0"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"thunderbird","product_name":"Thunderbird","version_start":"unspecified","version_start_inclusive":true,"version_end":"91.6.2","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:thunderbird:unspecified:91.6.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-09/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1758062","source_type":"MISC","tags":[]}],"timeline":[{"type":"cisa_reported","at":"2022-03-07T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"published","at":"2022-12-22T00:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:21:49.885041Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:21:49.885041Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:21:49.885041Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:01:26.728167Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:01:26.728167Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:01:26.728167Z","label":"SSVC decision revised","source":"vulnrichment"}]}